assertion  retraction  graph  subject          predicate        object             datatype    annotation
1          0           graph  obo:CHEBI_35479  rdfs:label       alkali metal salt  xsd:string  
1          0           graph  obo:CHEBI_35479  oio:id           CHEBI:35479        xsd:string  
1          0           graph  obo:CHEBI_35479  rdfs:subClassOf  obo:CHEBI_33296    _IRI        
1          0           graph  obo:CHEBI_35479  rdfs:subClassOf  obo:CHEBI_24866    _IRI        
1          0           graph  obo:CHEBI_35479  rdf:type         owl:Class          _IRI